FTIR spectroscopic and STM studies of vacuum deposited aluminium (III) 8-hydroxyquinoline thin films

Gavrilko, T.; Fedorovich, R. D.; Довбешко, Г. И.; Marchenko, Alexandr; Наумовец, А.Г.; Nechytaylo, V.; Puchkovska, G.; Viduta, L.; Baran, J.; Ratajczak, H.

doi:10.1016/j.molstruc.2004.01.068

Cited by 80 publications

(31 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As expected in the region below 1000 cm -1 , out-of-plane vibrations were observed. The most intense out-of plane absorption in this region was found at about 730 cm -1 [55,56]. The IR spectrum of the nanostructured of the prepared complex is identical with the spectrum of the single crystalline material which indicates that they have similar structures.…”

Section: General Characterizationmentioning

confidence: 61%

Structure and Photoluminescence Properties of a New Nanostructure Tin(IV) Complex: A Precursor for Preparation of Pure Phase Nanosized SnO2

Amini

Najafi

Poor

et al. 2015

J Inorg Organomet Polym

View full text Add to dashboard Cite

A new tin complex, [l-(4-bpdb){Me 2 Sn(cupf) 2 } 2 ] (1), was prepared by reacting dimethyltin(IV) dichloride, with 1,4-bis(4-pyridyl)-2,3-diaza-1,3-butadiene (4-bpdb) and cupferron in a fast and facile process. The complex was fully characterized based on its 1 H and 13 C NMR, IR, and UV spectra and elemental analysis. The nanostructure of the prepared compound was synthesized by the sonochemical method. The new nanostructure was characterized by scanning electron microscopy (SEM), X-ray powder diffraction (XRD), IR spectroscopy and elemental analysis. Thermal stability of single crystalline and nanosize samples of the prepared compound was studied by thermal gravimetric and differential thermal analysis. The prepared complexes, as bulk and as nanoparticles, were utilized as a precursor for preparation of SnO 2 nanoparticles by direct thermal decomposition at 600°C in air. The morphology and size of the SnO 2 nanoparticles were determined by scanning electron microscopy, XRD and IR spectroscopy and the results showed that particle size of the SnO 2 nanoparticle depend on the initial particles size of 1. Photoluminescence properties of the nanostructured and crystalline bulk of the prepared complex and SnO 2 nanoparticles core of them were investigated.

show abstract

Section: General Characterizationmentioning

confidence: 61%

Structure and Photoluminescence Properties of a New Nanostructure Tin(IV) Complex: A Precursor for Preparation of Pure Phase Nanosized SnO2

Amini

Najafi

Poor

et al. 2015

J Inorg Organomet Polym

View full text Add to dashboard Cite

show abstract

“…The middle region from 1700 to 1000 cm −1 relates to heavy atom in-plane stretching and bending vibrations. The last part of the spectrum comprising of the frequency region shows the out-of-plane and torsional modes [13].…”

Section: Resultsmentioning

confidence: 99%

Investigations of Different Phases Responsible for Changes in Optical Properties of Organic Semiconducting Device Material Thin Films

Shukla

Maitra

2013

Journal of Materials

View full text Add to dashboard Cite

The environment sensitivity of organic semiconductors may change their molecular structure and hence optical properties. Exploiting this concept, experiments were performed on a green light emitting material bis(8-hydroxy quinoline)Zinc, (Znq 2 ) used in organic light emitting diodes (OLEDs). Thin films were deposited at varying deposition parameters, and their properties were compared. We investigated that as deposited films have a significant component of Znq 2 tetramer out of two known forms, that is, dihydrate and anhydrous tetramer (Znq 2 ) 4 , the films deposited at lower deposition rates have higher anhydrous content. The degradation of thin film is shown, that changes the optical properties of film from green emission to blue which may be due to water adsorption and crystallization.

show abstract

“…The vibrational spectra of Rub and Alq3 a b molecules were described elsewhere in our previous papers [16][17], and the assignment of their major absorption bands to characteristic vibrations of Rub and Alq3 functional groups has been reported in various papers using experimental spectra and theoretical calculations [18][19][20]. In the present paper, we use these assignments for the analysis of the FTIR spectra of our samples.…”

Section: Ftir Spectra and Stability Of The Vd Filmsmentioning

confidence: 86%

Optical Properties and Stability of Bilayer Rubrene-Alq3 Films Fabricated by Vacuum Deposition

et al. 2018

View full text Add to dashboard Cite

We report on the optical and structural characterization of the two-component vacuum deposited (VD) rubrene (Rub)-Alq3 films. As is known, Rub-doped OLED active materials demonstrate both promising electroluminescence and transistor characteristics. However, in terms of operational lifetime, the Rub practical application in basic devices has a few drawbacks related to its chemical instability. Our main attention was focused on the role of the Alq3 coverage and the isomeric transformation of a Rub molecule on its chemical stability in these structures. By monitoring the evolution of PL emission in time, we found that the Rub degradation in Rub-Alq3 films is slower than that in vacuum-deposited Rub layers. These results demonstrate that the deposition of an Alq3 layer can be a way to enhance the stability of Rub to the photo-oxidation in optoelectronic devices. The Rub amorphous film crystallization at elevated temperatures in open air was observed for the first time.K e y w o r d s: rubrene, Alq3, oxidized rubrene, vacuum deposition, thin films, FTIR spectra, photoluminescence.

show abstract

FTIR spectroscopic and STM studies of vacuum deposited aluminium (III) 8-hydroxyquinoline thin films

Cited by 80 publications

References 16 publications

Structure and Photoluminescence Properties of a New Nanostructure Tin(IV) Complex: A Precursor for Preparation of Pure Phase Nanosized SnO2

Structure and Photoluminescence Properties of a New Nanostructure Tin(IV) Complex: A Precursor for Preparation of Pure Phase Nanosized SnO2

Investigations of Different Phases Responsible for Changes in Optical Properties of Organic Semiconducting Device Material Thin Films

Optical Properties and Stability of Bilayer Rubrene-Alq3 Films Fabricated by Vacuum Deposition

Contact Info

Product

Resources

About